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The Wakeup works fine with temperatures above. At a unit based limit the wakeup does not accure (only watchdog as fallback). RTC remains running.Any ideas?
Hi Everybody,I have an issue with STM32L433CCU6, when it's entering or exiting STOP 1 mode at temperatures from -36dC to -29dC uP completely freezesBasic overview of program:watchdog is set to 25 secondsclock: HSE 8MHz -> PLL 16MHz (SYSCLK) -> /2 -> ...
void init_led(){RCC->AHB1ENR|=0x8;GPIOD->MODER|=0x10000000;}void led_on(){GPIOD->ODR |= 0x4000;}void led_off(){GPIOD->ODR &= 0xBFFF;}void init_button(){RCC->AHB1ENR|=0X1; //ENABLE CLOCK TO GPIOAGPIOA->MODER &= ~0x03; // make gpioa0 mode inputEXTI->FT...
Hello. Never had parcing string experience so maybe it is a simple question.I will get from GPS module message like this:+CGNSINF: 1,1,20190913183507.000,54.000000,25.000000,139.107,0.00,87.5,2,,0.6,1.1,0.9,,12,16,,,51,,I need to extract data in corr...
hello, I am using L031K6 with UM1956 board.I am trying ultra low power sensor project with it. I want to use this board in disabling USB serial communication port status. because I think it is spending a lot of battery, even though the CPU is in the ...
Hi, I'm doing a firmware for a micro STM32F4.The micro is always in an infinite loop in the main(), at the end of each cycle it should check if there are any data on UART buffer, in case there are read all data and continue with the normal infinite l...
I have a requirement for receiving some long USART packets. (200 to 300 bytes). They can be of variable lengths. I did not want to poll or trigger interrupts for each byte and watch for a Stop byte symbol. But been trying to get the Idle line or Rece...
I have been trying to learn the STM32 for the past week. As someone started with Arduino, this is quite frankly overwhelming to me.Anyways, what I couldn't wrap my head around is where do people find all the reference for the callback function. I'm c...
Hello,As you can see, based on datasheet, the input frequency of Timer 2 is 36Mhz. I have attached 25Mhz crystal to my MCU and here is clock and timer configuration. I need to have 30mS interrupt but I get 16mS.void CLOCK(void){ RCC_HSEConfig(RCC_HS...
Hi, I am using an STM32L4 MCU and I need to make the COMPx_OUT acting as a retriggerable monostable output. I know I can use timers as blinking source for COMPx_OUT, but this would not help, and as far I understand, the only way to solve my problem ...
